confirm the presence of tin as tin(IV). The magnitudes of the quadrupole splitting and the ratios of the QS to the IS of both compounds reveal that tin is higher than four coordinated. The solid state structure of II was determined by X-ray diffraction. The compound crystallized in the trigonal space group R with a, b 31.433(15), c 10.259(3) Å, V 8778.2 Å3, Z = 18, Dx 1.56 g cm−3 at 138 K. In the solid state
ø -Methylmethylphosphatotriphenyltin(IV)(II)通过处理
化学计算量的合成ø,ö与
汞'-dimethylmonothiophosphatotriphenyltin(IV)(I)。溶液中I相对于
四甲基锡的负119 Sn
化学位移对应于溶液中高于四个配位(在
锡处)的
化学位移。I和II的119 SnMössbauer异构体位移的值证实了
锡的存在是
锡(IV)。两种化合物的四极分裂幅度和QS与IS的比值表明,
锡高于四个配位化合物。II的固态结构通过X射线衍射测定。在三角空间群中结晶的化合物[R与一个,b 31.433(15),Ç 10.259(3)埃,V 8778.2埃3,Ž = 18,d X 1.56克厘米-3在138 K.在固态化合物II存在作为高度对称的环状六聚体其中平面
三甲基锡(IV)基团通过OPO键轴向桥接。
锡的几何形状为三角形双锥体,轴向O-Sn-O角为177